Which of those things are you committing to do?

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Sometimes the supports themselves just look so cool

I can second, build123d is awesome! Splines, fillets, full object-oriented programming techniques if you care to use them including directly referencing properties of existing parts, which is something OpenSCAD fundamentally cannot do. It has two syntaxes you can choose from, one more oriented toward traditional CAD users (builder mode) and one more oriented toward developers (algebra mode). As a developer, I have found it much easier to work with algebra mode versus builder mode.

It’s coarse and rough and irritating and it gets everywhere

Sure am glad we have police robots in the sky to protect us from 19 year old kids stealing stuff from Walmart

Gozz is correct. You’re misunderstanding the nature of a digital signal. What the author did was convert a digital signal to an analog signal, store that analog signal on a bird, then record that analog signal. Whether it was redigitized after the fact is irrelevant. It is not a digital process end-to-end. This is the same as if I were to download a YouTube video, record that video on a VHS tape, then redigitize that video. Not only would the end result not be a bit for bit match, it wouldn’t be a match at all despite containing some of the same visual information, because it would be the product of a digital-analog-digital conversion.

That kaleidoscope is awesome! I kinda want to make one.